Waiting chair is mainly used in indoor or outdoor, if used outdoors waiting chair would be rusty iron.
As for the stainless steel is environmental protection, not easy to wear and tear, never rust, edge of edge is aluminium alloy, electrochemical treatment, at the bottom of the beam is 2 mm thick 40 * 80 mm steel pipe, spray outdoor paint powder, can withstand the test of the wind, rain and sunshine.
Compare the material of stainless steel and iron, stainless steel, resistant to weak corrosive medium such as air, steam, water, with a stainless steel grade is called stainless steel;
And resistance to chemical corrosion medium (
Acid, alkali, salt and other chemical etching)
Corrosion of steel called acid-resistant steel.
Experiment shows that the steel in the atmosphere, the weak medium such as water and nitric acid oxidation, such as medium, its corrosion resistance increase with the increase of chromium content in steel, when the chromium content reaches a certain percentage of steel corrosion resistance mutation, that is, from easy to rust is not easy to rust, never corrosion resistant to corrosion.
Iron: iron react with dilute sulphuric acid to produce the ferrous sulfate, there are air bubbles.
So by the acid rain area, outdoor seating is very bad, easy to corrosion of iron.
Iron react with oxygen or water vapor generated Fe ₃ O ₄, can be seen as FeO·
So if weathered, or indoor, such as airport, station, cleaner water or disinfectant to clean the seating, so it is good to accelerate the oxidation and corrosion of iron.
So most of the airport chairs, waiting chairs, seating is choose stainless steel, aluminum alloy, steel as raw materials.